Atomic High-Spin Cobalt Unlocks Reversible Multi-Electron Transfer Chemistry for Superb Aqueous Zn-Mn Batteries (IMAGE)

Shanghai Jiao Tong University Journal Center

Atomic High-Spin Cobalt Unlocks Reversible Multi-Electron Transfer Chemistry for Superb Aqueous Zn-Mn Batteries

Caption

  • Atomically dispersed high-spin Co atoms embedded in layered MnO2 are realized via in-situ topological phase transformation from CoMn-LDH.
  • High-spin Co unlocks fast electrode kinetics in Co-MnO2 by regulating the symmetry of [MnO6] and providing available excessive electrons to lattice oxygen.
  • The Co-MnO2 exhibits dual-energy storage mechanisms of MnO2/Mn3+ in bulk and electrolytic MnO2/Mn2+ at interface in Mn2+ containing electrolyte.

Credit

Yajun Zhao, Qi Li, Yanan Lv, Shuoxiao Zhang, Kai Jiang, Meng Xu, Mudasir Muhammad, Yueyang Wang, Yang Ren, Yi Zhao*, Xiaoming Sun*.

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